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Proof step 14 from proof isobj-put-samefield (previous step)

fs = mkfs(class, ty, fieldvar), is_obj(r, st[r -- fs ', val]), r -- fs ' ∈ st, okval(st[r -- fs '], ty), okval(val, ty), r ∈ st ⊦ fs ' = _type, is_obj(r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 13:
is_obj(r, st[r -- mkfs(class, ty, fieldvar) ', val]), r -- mkfs(class, ty, fieldvar) ' ∈ st, okval(st[r -- mkfs(class, ty, fieldvar) '], ty), okval(val, ty), r ∈ st ⊦ mkfs(class, ty, fieldvar) ' = _type, is_obj(r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]